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tests: API to launch snmpd in a topotest scenario

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Prepare the infrastructure to allow configuring and launching an SNMP
daemon as part of testing scenario.

Signed-off-by: Babis Chalios <babis@voltanet.io>
Signed-off-by: Pat Ruddy Chalios <pat@voltanet.io>
This commit is contained in:
Babis Chalios 2020-11-11 14:34:32 +00:00 committed by Pat Ruddy
parent b96138fbf0
commit 92be50e63e
2 changed files with 22 additions and 3 deletions
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6
tests/topotests/lib/topogen.py
View File

@ -555,6 +555,7 @@ class TopoRouter(TopoGear):
RD_BABEL = 15 RD_BABEL = 15
RD_PBRD = 16 RD_PBRD = 16
RD_PATH = 17 RD_PATH = 17
RD_SNMP = 18
RD = { RD = {
RD_ZEBRA: "zebra", RD_ZEBRA: "zebra",
RD_RIP: "ripd", RD_RIP: "ripd",
@ -572,7 +573,8 @@ class TopoRouter(TopoGear):
RD_SHARP: "sharpd", RD_SHARP: "sharpd",
RD_BABEL: "babeld", RD_BABEL: "babeld",
RD_PBRD: "pbrd", RD_PBRD: "pbrd",
RD_PATH: 'pathd', RD_PATH: "pathd",
RD_SNMP: "snmpd",
} }
def __init__(self, tgen, cls, name, **params): def __init__(self, tgen, cls, name, **params):
@ -657,7 +659,7 @@ class TopoRouter(TopoGear):
Possible daemon values are: TopoRouter.RD_ZEBRA, TopoRouter.RD_RIP, Possible daemon values are: TopoRouter.RD_ZEBRA, TopoRouter.RD_RIP,
TopoRouter.RD_RIPNG, TopoRouter.RD_OSPF, TopoRouter.RD_OSPF6, TopoRouter.RD_RIPNG, TopoRouter.RD_OSPF, TopoRouter.RD_OSPF6,
TopoRouter.RD_ISIS, TopoRouter.RD_BGP, TopoRouter.RD_LDP, TopoRouter.RD_ISIS, TopoRouter.RD_BGP, TopoRouter.RD_LDP,
TopoRouter.RD_PIM, TopoRouter.RD_PBR. TopoRouter.RD_PIM, TopoRouter.RD_PBR, TopoRouter.RD_SNMP.
""" """
daemonstr = self.RD.get(daemon) daemonstr = self.RD.get(daemon)
self.logger.info('loading "{}" configuration: {}'.format(daemonstr, source)) self.logger.info('loading "{}" configuration: {}'.format(daemonstr, source))

19
tests/topotests/lib/topotest.py
View File

@ -1105,7 +1105,8 @@ class Router(Node):
"sharpd": 0, "sharpd": 0,
"babeld": 0, "babeld": 0,
"pbrd": 0, "pbrd": 0,
'pathd': 0 "pathd": 0,
"snmpd": 0,
} }
self.daemons_options = {"zebra": ""} self.daemons_options = {"zebra": ""}
self.reportCores = True self.reportCores = True
@ -1289,6 +1290,8 @@ class Router(Node):
% (self.routertype, self.routertype, self.routertype, daemon) % (self.routertype, self.routertype, self.routertype, daemon)
) )
self.waitOutput() self.waitOutput()
if (daemon == "snmpd") and (self.routertype == "frr"):
self.cmd('echo "agentXSocket /etc/frr/agentx" > /etc/snmp/frr.conf')
if (daemon == "zebra") and (self.daemons["staticd"] == 0): if (daemon == "zebra") and (self.daemons["staticd"] == 0):
# Add staticd with zebra - if it exists # Add staticd with zebra - if it exists
staticd_path = os.path.join(self.daemondir, "staticd") staticd_path = os.path.join(self.daemondir, "staticd")
@ -1445,6 +1448,20 @@ class Router(Node):
while "staticd" in daemons_list: while "staticd" in daemons_list:
daemons_list.remove("staticd") daemons_list.remove("staticd")
if "snmpd" in daemons_list:
snmpd_path = "/usr/sbin/snmpd"
snmpd_option = self.daemons_options["snmpd"]
self.cmd(
"{0} {1} -C -c /etc/frr/snmpd.conf -p /var/run/{2}/snmpd.pid -x /etc/frr/agentx > snmpd.out 2> snmpd.err".format(
snmpd_path, snmpd_option, self.routertype
)
)
logger.info("{}: {} snmpd started".format(self, self.routertype))
# Remove `snmpd` so we don't attempt to start it again.
while "snmpd" in daemons_list:
daemons_list.remove("snmpd")
# Fix Link-Local Addresses # Fix Link-Local Addresses
# Somehow (on Mininet only), Zebra removes the IPv6 Link-Local addresses on start. Fix this # Somehow (on Mininet only), Zebra removes the IPv6 Link-Local addresses on start. Fix this
self.cmd( self.cmd(